Correction By Refrigerant Piping Length - Mitsubishi Electric CITY MULTI PUHY-M200-300YNW-A1 Data Book

8. CAPACITY TABLES

8-4. Correction by refrigerant piping length

CITY MULTI system can extend the piping flexibly within its limitation for the actual situation. However, a decrease of cooling/
heating capacity could happen correspondently. Using following correction factor according to the equivalent length of the piping
shown at 8-4-1 and 8-4-2, the capacity can be observed. 8-4-3 shows how to obtain the equivalent length of piping.
8-4-1. Cooling capacity correction
PUHY-(E)M200YNW-A1(-BS)
1
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0 20 40 60 80
Piping equivalent length (m)
PUHY-(E)M250YNW-A1(-BS)
1
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0 20 40 60 80
Piping equivalent length (m)
8-4-2. Heating capacity correction
PUHY-(E)M200, 250YNW-A1(-BS)
1.00
0.95
0.90
0 20 40 60
Piping equivalent length (m)
8-4-3. How to obtain the equivalent piping length
1. PUHY-(E)M200YNW-A1(-BS)
Equivalent length = (Actual piping length to the farthest indoor unit) + (0.42 × number of bends in the piping) [m]
2. PUHY-(E)M250YNW-A1(-BS)
Equivalent length = (Actual piping length to the farthest indoor unit) + (0.42 × number of bends in the piping) [m]
3. PUHY-(E)M300YNW-A1(-BS)
Equivalent length = (Actual piping length to the farthest indoor unit) + (0.42 × number of bends in the piping) [m]
MEES19K116
Total capacity of indoor unit
100 120 140 160 180
Total capacity of indoor unit
100 120 140 160 180
80 100 120 140 160 180
PUHY-(E)M300YNW-A1(-BS)
1
100
0.95
0.90
150
0.85
200
0.80
260
0.75
0.70
0.65
0 20 40
Piping equivalent length (m)
125
188
250
325
PUHY-(E)M300YNW-A1(-BS)
1.00
0.95
0.90
0 20 40
Piping equivalent length (m)
Total capacity of indoor unit
60 80 100 120 140 160
60 80 100 120 140 160
Y-Series
150
225
300
390
180
180
36